Math practice for 13 year olds - page 83 of 422

Number of problems found: 8424

If four
If four friends evenly split 6 1/2 pounds of candy, how many pounds of candy does each friend get?
Hakeem
Hakeem subtracted 8 from a number, then multiplied the difference by 4/5. The result was 20. Write and solve an equation to find the number, x.
A dress
A dress regularly sells for $75. The sale price is $58. Find the percent decrease in the sale price from the regular price.
Three 220
Three numbers are in a ratio of 2:3:4. Find the second number if their sum is 306. a. 68 b. 102 c. 136 d. 140
Sarah 3
Sarah ran 4 7/8 miles, then walked 1 11/12 miles. Could you find the total distance she traveled?
Square room 2
A square room has a floor area of 144 square feet. The height of the room is 6 feet. What is the area of one wall?
Intersections 80587
Draw the graph of the function y = -2x + 3. Calculate the coordinates of the intersections of the function's graph with the x and y axes.
Additions 80586
Each of the three additions is 5 more than the previous one. The sum of all is 78. Which numbers are these?
Mathematics 80583
Can it be 1%>2%? Can't it be nonsense and a denial of the law of mathematics, yet 119 out of 120 people say so?
A shopkeeper 5
A shopkeeper sold some sets of Pencils and Pens. Each set contained 6 pencils and 2 pens. If the shopkeeper sold 112 pencils and pens, how many pens did she sell altogether?
James 6
James and Lisa shared some sweets. James took 2/7 of the sweets, and Lisa took the rest. If James took 18 fewer sweets than Lisa, how many sweets did they have altogether at first?
How many 28
How many can 15cm x 25 cm tiles fit in a room with a length of 3m and a width of 2.5m?
Received 80578
A poultry company received a thousand chickens with an average weight of 1.7 kg at CZK 50/kg. During the day, the company sold 300 chickens for 24 thousand. CZK. What was the average weight of unsold chickens?
Resistance 80577
Three identical resistors connected in series have a total resistance of 9 ohms. What will be their total resistance when connected in parallel
Equilateral 80573
The field has the shape of an equilateral triangle. Calculate its area if you know that the side is 280 meters long.
Nightmares 80568
At the dream market, she offered the Sphinx to a traveler for four dreams, seven illusions, two naps, and one nightmare. Another has seven dreams, four illusions, four naps, and two nightmares. The Sphinx always measures the same for all travelers. How ma
Supplementary angles 4
Angle A and angle B are supplementary. The measure of angle B is 82.5. What is the measure of angle A in degrees? Enter your answer as a decimal, if necessary, like this: 42.5
Martha 2
Martha is 26 years old, while her nephew is 18 years old. What is the simplest ratio of Martha's age to her nephew's age?
Positive integer integral
How many different sets of a positive integer in the form (x, y, z) satisfy the equation xyz=1400?
Apprentices 80561
The master produced a quarter more products than one of his apprentices. Together they produced 45 products. How many products did the apprentice make, and how many did the master make?

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